Waterproof Membrane for water run off

Posted by on July 31, 2009, 10:04 pm

I'm using gravel to provide an incline for water run off away from the
house Managed to snag a load of gravel for nothing, so might as
well use it. Plus this is under the eaves of a house and the gutters
occasionally leak and overflow, so gravel is being used to
prevent erosion.

I have one layer of gravel inclined away from the house and would
like to place a waterproof membrane over this layer, and then place
another layer of gravel on top. The first layer is already inclined
away from the house.

What type of membrane or plastic sheeting would be best to
use? Something that is fairly durable and long lasting.

Thanks in advance !!

Peter

Posted by Red Green on July 31, 2009, 10:28 pm

4ax.com:

>
>
> I'm using gravel to provide an incline for water run off away from the
> house Managed to snag a load of gravel for nothing, so might as
> well use it. Plus this is under the eaves of a house and the gutters
> occasionally leak and overflow, so gravel is being used to
> prevent erosion.
>
> I have one layer of gravel inclined away from the house and would
> like to place a waterproof membrane over this layer, and then place
> another layer of gravel on top. The first layer is already inclined
> away from the house.
>
> What type of membrane or plastic sheeting would be best to
> use? Something that is fairly durable and long lasting.
>
>
> Thanks in advance !!
>
> Peter
>
>

> fairly durable and long lasting.

And made to withstand water, temp extremes, sunlight and rocks on top?

Pond construction liner.

EDPM (vs PVC) liner would probably be the Crème de la Crop.

You didn't say cheap.

Maybe try roofing supplier as well. I believe I've seen in this group
that EDPM is used in certain roofing applications. I know the pond liners
run 20 and 45 mil thick.

Posted by Colbyt on August 1, 2009, 7:20 am

> 4ax.com:

>> I'm using gravel to provide an incline for water run off away from the
>> house Managed to snag a load of gravel for nothing, so might as
>> well use it. Plus this is under the eaves of a house and the gutters
>> occasionally leak and overflow, so gravel is being used to
>> prevent erosion.
>> I have one layer of gravel inclined away from the house and would
>> like to place a waterproof membrane over this layer, and then place
>> another layer of gravel on top. The first layer is already inclined
>> away from the house.
>> What type of membrane or plastic sheeting would be best to
>> use? Something that is fairly durable and long lasting.
>> Thanks in advance !!
>> Peter
>> fairly durable and long lasting.

> And made to withstand water, temp extremes, sunlight and rocks on top?
> Pond construction liner.
> EDPM (vs PVC) liner would probably be the Crème de la Crop.
> You didn't say cheap.
> Maybe try roofing supplier as well. I believe I've seen in this group
> that EDPM is used in certain roofing applications. I know the pond liners
> run 20 and 45 mil thick.

I agree that would certainly be the ultimate choice.

Some lower cost options include 4-6 mil plastic or a single row of roofing
shingles placed end to end.

I would use landscape fabric cut into strips. It is not water proof but
would serve the purpose of allowing heavy flow to run off.

Posted by bob haller on August 1, 2009, 8:45 am

> > 4ax.com:

> >> I'm using gravel to provide an incline for water run off away from the
> >> house =EF=BF=BDManaged to snag a load of gravel for nothing, so might =

> >> well use it. =EF=BF=BDPlus this is under the eaves of a house and the =

gutters

> >> occasionally leak and overflow, =EF=BF=BDso gravel is being used to
> >> prevent erosion.
> >> =EF=BF=BD I have one layer of gravel inclined away from the house and =

would

> >> like to place a waterproof membrane over this layer, =EF=BF=BDand then=

place

> >> another layer of gravel =EF=BF=BDon top. =EF=BF=BD The first layer is =

already inclined

> >> away from the house.
> >> What type of membrane or plastic sheeting would be best to
> >> use? =EF=BF=BD =EF=BF=BDSomething that is fairly durable and long last=

ing.

> >> Thanks in advance !!
> >> Peter
> >> fairly durable and long lasting.

> > And made to withstand water, temp extremes, sunlight and rocks on top?
> > =EF=BF=BD =EF=BF=BDPond construction liner.
> > EDPM (vs PVC) liner would probably be the Cr=EF=BF=BDme de la Crop.
> > You didn't say cheap.
> > Maybe try roofing supplier as well. I believe I've seen in this group
> > that EDPM is used in certain roofing applications. I know the pond line=

> > run 20 and 45 mil thick.

> I agree that would certainly be the ultimate choice.
> Some lower cost options include =EF=BF=BD4-6 mil plastic or =EF=BF=BDa si=

ngle row of roofing

> shingles placed end to end.
> I would use landscape fabric cut into strips. =EF=BF=BDIt is not water pr=

oof but

> would serve the purpose of allowing heavy flow to run off.- Hide quoted t=

ext -

> - Show quoted text -

install a perforated pipe running to daylight ...........

far better to upgrade to larger gutters and downspouts. water
cascading down side of home can cause big grief:( like rot, mold on
inside of home, detoriation of brick and even siding.

better to fix the real problem than try to redirect water.

Posted by on August 1, 2009, 10:41 am

> > > 4ax.com:
> > >> I'm using gravel to provide an incline for water run off away from t=

> > >> house Managed to snag a load of gravel for nothing, so might as
> > >> well use it. Plus this is under the eaves of a house and the gutters
> > >> occasionally leak and overflow, so gravel is being used to
> > >> prevent erosion.
> > >> I have one layer of gravel inclined away from the house and would
> > >> like to place a waterproof membrane over this layer, and then place
> > >> another layer of gravel on top. The first layer is already inclined
> > >> away from the house.
> > >> What type of membrane or plastic sheeting would be best to
> > >> use? Something that is fairly durable and long lasting.
> > >> Thanks in advance !!
> > >> Peter
> > >> fairly durable and long lasting.
> > > And made to withstand water, temp extremes, sunlight and rocks on top=

> > > Pond construction liner.
> > > EDPM (vs PVC) liner would probably be the Cr me de la Crop.
> > > You didn't say cheap.
> > > Maybe try roofing supplier as well. I believe I've seen in this group
> > > that EDPM is used in certain roofing applications. I know the pond li=

ners

> > > run 20 and 45 mil thick.

> > I agree that would certainly be the ultimate choice.
> > Some lower cost options include 4-6 mil plastic or a single row of roof=

ing

> > shingles placed end to end.
> > I would use landscape fabric cut into strips. It is not water proof but
> > would serve the purpose of allowing heavy flow to run off.- Hide quoted=

text -

> > - Show quoted text -

> install a perforated pipe running to daylight ...........
> far better to upgrade to larger gutters and downspouts. water
> cascading down side of home can cause big grief:( like rot, mold on
> inside of home, detoriation of brick and even siding.
> better to fix the real problem than try to redirect water.- Hide quoted t=

ext -

> - Show quoted text -

I assume by gravel he means washed gravel or stone? If it's true
gravel, ie stones mixed with sand, clay, etc then I don;'t see the
point at all. Even with stone, it doesn't sound like a good plan to
put a membrane between the existing stone, then more stone on top.
The water has no place to go and with an irregular surface to the
membrane, will tend to pool up in spots and stay there until it
evaporates.

Normally, just having the grade slope away from the house is
sufficient to move water away

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